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Alaska Blind Child Discovery

A cooperative, charitable research project to vision screen every preschool Alaskan

Home Acuity Test

It may not be convenient, or cost-effective, to have every pre-Kindergarten or Third grade child travel to a special clinic for the recommended Patched, Surround Optotype Acuity Screening. Therefore, ABCD has developed a downloadable kit which can be used by parents, teachers, public health nurses or aids, pediatricians, etc. The "kit" consists of a surround HOTV chart for use at ten feet from the child with 20/40 cut-off for Kindergarten and 20/32 cut-off for Third Graders. The kit also sends a Matching Card with Instructions. Parents can generate effective patches from readily available duct or masking tape. A PinHole card can also be made to allow children with mild glasses problems to defer their confirmatory exam.      
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BMC Journal Validation
Surround HOTV Acuity Screening foldable "box" with grade-level 20/32 and 20/40 cut-offs. 70K pdf
Match Card 258K pdf
Detailed Instructions
YouTube video Instructions   Video Demonstration  
        YouTube demonstration    
The Concept of a 4-sided, age-appropriate critical line surround "Top" was suggested by Vision Screen Authority the late Kurt Simons, PhD from Johns Hopkins University Wilmer Institute.
Home HOTV Acuity Threshold Monitor
HOTVAX on Your Browser
FAST acuity Screen Test


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